19.080;29.130.99 标准查询与下载

AS 4278:1995 部分型式试验组件（PTTA）抗短路强度的评价方法

Describes a method that may be used for partially type-tested assemblies to prove compliance with the requirements of AS 3439.1 regarding short-circuit withstand strength. This Standard is identical with and has been reproduced from IEC 1117:1992.

A method for assessing the short-circuit withstand strength of partially type-tested assemblies (PTTA)